English verb conjugation COULD PROBE

Regular verb: probe - probed - probed

Affirmation

Simple form

I could probe
you could probe
he could probe
we could probe
you could probe
they could probe

V-ing form

I could be probing
you could be probing
he could be probing
we could be probing
you could be probing
they could be probing

Perfect

I could have probed
you could have probed
he could have probed
we could have probed
you could have probed
they could have probed

V-ing perfect

I could have been probing
you could have been probing
he could have been probing
we could have been probing
you could have been probing
they could have been probing

Negation

Simple form

I couldn't probe
you couldn't probe
he couldn't probe
we couldn't probe
you couldn't probe
they couldn't probe

V-ing form

I couldn't be probing
you couldn't be probing
he couldn't be probing
we couldn't be probing
you couldn't be probing
they couldn't be probing

Perfect

I couldn't have probed
you couldn't have probed
he couldn't have probed
we couldn't have probed
you couldn't have probed
they couldn't have probed

V-ing perfect

I couldn't have been probing
you couldn't have been probing
he couldn't have been probing
we couldn't have been probing
you couldn't have been probing
they couldn't have been probing

Interrogative form

Simple form

could I probe?
could you probe?
could he probe?
could we probe?
could you probe?
could they probe?

V-ing form

could I be probing?
could you be probing?
could he be probing?
could we be probing?
could you be probing?
could they be probing?

Perfect

could I have probed?
could you have probed?
could he have probed?
could we have probed?
could you have probed?
could they have probed?

V-ing perfect

could I have been probing?
could you have been probing?
could he have been probing?
could we have been probing?
could you have been probing?
could they have been probing?

Interro-negative form

Simple form

couldn't I probe?
couldn't you probe?
couldn't he probe?
couldn't we probe?
couldn't you probe?
couldn't they probe?

V-ing form

couldn't I be probing?
couldn't you be probing?
couldn't he be probing?
couldn't we be probing?
couldn't you be probing?
couldn't they be probing?

Perfect

couldn't I have probed?
couldn't you have probed?
couldn't he have probed?
couldn't we have probed?
couldn't you have probed?
couldn't they have probed?

V-ing perfect

couldn't I have been probing?
couldn't you have been probing?
couldn't he have been probing?
couldn't we have been probing?
couldn't you have been probing?
couldn't they have been probing?

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